Invertebrate community datasets from before and after piscicide application in two high elevation Rocky Mountain streams in Colorado, 2015 through 2020

In western United States streams, Oncorhynchus virginalis stomias (Greenback Cutthroat Trout; GBCT) was thought to be extinct; however, a genetically verified population was identified and used for subsequent conservation efforts to reestablish populations. To restore native trout habitat, stream reaches upstream of a dispersal barrier are treated with a piscicide (rotenone) to remove non-native trout before reintroduction. This method potentially affects non-target invertebrates, which could subsequently hinder native trout establishment. To better understand the potential effects of this method on non-target invertebrates, invertebrate communities were sampled for 5 years in two streams where GBCT were reintroduced. Pre- and post-treatment rotenone sampling allowed for examination of acute (1 to 2 months), short- (1 to 2 years) and long-term (3 to 5 years) responses to invertebrate communities. Data were collected in 2015 through 2020. Samples were collected in the summer and fall each year. Herman Gulch was treated with rotenone from 30 September to 1 October 2015, and Dry Gulch was treated with rotenone from 27 to 28 September 2016. Overall, 248 samples were collected: 120 from Herman Gulch (60 summer and 60 fall) and 128 from Dry Gulch (60 summer and 68 fall). Data include treatment groups and calculated invertebrate metrics, as well as individual densities for selected taxa.

在美国西部溪流中，绿背切喉鳟（Oncorhynchus virginalis stomias，Greenback Cutthroat Trout，简称GBCT）曾被认为已经灭绝；后经遗传学验证发现了存活种群，并将其用于后续的种群重建保护工作。为恢复本土鲑科鱼类的栖息环境，研究者会在扩散屏障上游的溪流河段施用鱼藤酮（rotenone）类杀鱼剂，以清除外来鲑科鱼类，随后开展本土鱼类的再引入工作。该处理方法可能会对非目标无脊椎动物（invertebrate）造成影响，进而可能阻碍本土鲑鱼种群的成功建立。为深入了解该方法对非目标无脊椎动物的潜在效应，研究者在两个完成绿背切喉鳟再引入的溪流中，对无脊椎动物群落开展了为期5年的采样监测。通过施药前、后的采样数据，得以考察无脊椎动物群落在急性（1至2个月）、短期（1至2年）以及长期（3至5年）三个尺度下的响应情况。数据采集工作于2015年至2020年间开展，每年夏季与秋季均会采集样本。赫尔曼溪（Herman Gulch）于2015年9月30日至10月1日期间施用鱼藤酮，德雷溪（Dry Gulch）则于2016年9月27日至28日完成施药操作。本次研究共采集样本248份：其中赫尔曼溪120份（夏季、秋季各60份），德雷溪128份（夏季60份、秋季68份）。数据集涵盖处理分组信息、计算得到的无脊椎动物群落指标，以及选定类群的个体密度数据。